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Compare the published Medicare service mix of Wai Yin Teresa Chang with clinicians in the same registry specialty: Optometrist.

HAGERSTOWN, MD · Exact areaEdit location

2024 published service data · 18 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Mark R Teunis, OD

Optometrist · Hagerstown, MD

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient complete exam of visual system (92014)
  • New patient complete exam of visual system (92004)
82%Service-mix similarityView profile →

Fabrice Djoko Dzuguia, OD

Optometrist · Hagerstown, MD

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient complete exam of visual system (92014)
  • New patient complete exam of visual system (92004)
75%Service-mix similarityView profile →

Sonia Kidwai, OD

Optometrist · Hagerstown, MD

Shared published services
2 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • New patient complete exam of visual system (92004)
68%Service-mix similarityView profile →

Steven Michael Chado, OD

Optometrist · Hagerstown, MD

Shared published services
2 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • New patient complete exam of visual system (92004)
68%Service-mix similarityView profile →

Chelsea Dayton, OD

Optometrist · Hagerstown, MD

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient complete exam of visual system (92014)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
64%Service-mix similarityView profile →

Nagaraju Kemidi, O.D.

Optometrist · Hagerstown, MD

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient complete exam of visual system (92014)
  • New patient complete exam of visual system (92004)
64%Service-mix similarityView profile →

Dawn A Agostini, O.D.

Optometrist · Hagerstown, MD

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient complete exam of visual system (92014)
  • New patient complete exam of visual system (92004)
64%Service-mix similarityView profile →

Lauren Nicole Wood, O.D.

Optometrist · Hagerstown, MD

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient complete exam of visual system (92014)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
60%Service-mix similarityView profile →

Jessica Renee Hollister, O.D.

Optometrist · Hagerstown, MD

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient complete exam of visual system (92014)
  • New patient complete exam of visual system (92004)
55%Service-mix similarityView profile →

Jeffrey L Reynolds, OD

Optometrist · Hagerstown, MD

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • New patient complete exam of visual system (92004)
52%Service-mix similarityView profile →

Philip Berry, OD

Optometrist · Hagerstown, MD

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient complete exam of visual system (92014)
51%Service-mix similarityView profile →

Rose Navin Wood, O.D.

Optometrist · Hagerstown, MD

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient complete exam of visual system (92014)
  • New patient complete exam of visual system (92004)
50%Service-mix similarityView profile →
How this comparison works

We use the same calendar year of CMS Medicare Physician & Other Practitioners data for both providers. Published non-drug service counts are combined by HCPCS code across places of service. We apply log(1 + count), normalize the vectors, and compare them using cosine similarity.

Candidates share the reference provider’s current NPPES primary taxonomy and match the location you enter. We examine up to 500 candidates in NPI order, then show up to 12 with the highest positive similarity within that set. The score is not a percentile, medical recommendation, or prediction. Suppressed services are not estimated. Medicare fee-for-service data does not describe a provider’s entire practice.

Source: CMS Medicare Physician & Other Practitioners - by Provider and Service : 2024-12-01 · Published May 21, 2026.